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3 Solutions: 1. using numpy, 2. using zip(), 3. using list comprehension solution in 3rd party category for Transposed Matrix by H0r4c3
from typing import List
# 1. Solution
import numpy as np
def checkio_(data: List[List[int]]) -> List[List[int]]:
return list(np.transpose(data))
# 2. Solution
def checkio_(data: List[List[int]]) -> List[List[int]]:
return(list(zip(*data)))
# 3. Solution
def checkio(data: List[List[int]]) -> List[List[int]]:
return(list([[data[j][i] for j in range(len(data))] for i in range(len(data[0]))]))
#These "asserts" using only for self-checking and not necessary for auto-testing
if __name__ == '__main__':
print("Example:")
print(checkio([[1, 2, 3],
[4, 5, 6],
[7, 8, 9]]))
assert isinstance(checkio([[0]]).pop(), list) is True, "Match types"
assert checkio([[1, 2, 3],
[4, 5, 6],
[7, 8, 9]]) == [[1, 4, 7],
[2, 5, 8],
[3, 6, 9]], "Square matrix"
assert checkio([[1, 4, 3],
[8, 2, 6],
[7, 8, 3],
[4, 9, 6],
[7, 8, 1]]) == [[1, 8, 7, 4, 7],
[4, 2, 8, 9, 8],
[3, 6, 3, 6, 1]], "Rectangle matrix"
print("Coding complete? Click 'Check' to earn cool rewards!")
Jan. 24, 2022
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